Improvement in blind-adjusters



R; J'. STU-ART.

BLIND-ADJUSTER. l No.184,556.' y l Patented Nov. 21,1876.

lnisszs, .Y mvnvm y ATTORNEYS.

UNITED STATES PATENT OFFICE ROBERT J. STUART, OF YONKERS, YORK.

IMPROVEMENT IN` BLlVND-A'DJUSTERS.

Specification forming part of Letters Patent N o. 184,556, dated November 21, 1876; application filed October 14, 1876.

To all whom it may concern Be it known that I, ROBERT J. STUART, of Yonkers, in the county of Westchester and State of New York, have invented a new and Improved vBlind-Adjusting Device, ot' which the following is a speciiication:

In the accompanying drawing, Figure l represents a horizontal section of a windoweasing and shutter with my improved adjusting device, taken on line x w, Fig. 2; and Fig. 2 is a vertical transverse section ot' the window-casing on liney y, Fig. 1, showing blindadjuster in side elevation.

Similar letters of reference indicate correspondin g parts.

The invention relates to an improved de` vice for adjusting and locking blinds from the inside ot' the room into any suitable position;

and the invention consists of a double elbowlever, which is pivoted to the window-sill, being adjusted, by a spring-button having an eccentric pin, to an arc-shaped rack, and connected by an outer pin with guide-strips of the blind.

In the drawing, A represents a double or compound elbow-lever, that is fulcrumed, by a screw-pivot, to the window-sill, one part of the elbow -lever extending over the lower guide-strip ot' the same to the inside of the window, while the other main part swings on the sill and tits into a longitudinal recess ot' the strip when the blind is closed. The main part of elbow-lever A is bent at nearly a right angle at the outer end, while the inner shorter part extends at an acute angle therefrom, being keyed or otherwise rigidly secured to the perforated pivot part 0r sleeve. The end of the inner arm of the elbow-lever A is provided with a spring or other button, B, that turns on a center pivot, and locks by an eccentrical downward-projecting pin, a, into the notches of an arc-shaped rack, C, secured to the inside of the window-sill. The spring-button C admits the ready release or locking of the elbow-lever A, as required. The outer end otl elbow-lever A engages by a projecting pin or anti-friction roller, b, the guide-strips D, which are attached at the lower inside part of the blind, being of' sufficient width to admit the free motion of pin b. By carrying the springbutton to one side or the other, the blind is opened and closed, being locked into any desired position by releasing the button, so that the pin engages the rack. The outer angular part ot' the elbow-lever and sliding pin admits the entire opening of the blind, as the angular end extends around the outer corner of the window-casing, and furnishes always sufcient leverage for readily operating the shutterand rigidlylockingthesame. The blinds may, by this attachment, be conveniently set from the inside of the room, and also securely held in position, being readily applied to Aany blind and sill at comparatively small expense.

Having thus described my invention, I' claim as new and desire to secure by Letters Patent- The combination ot' a double or compound elbow-lever, fulcrumed to the window-sill, and provided with a locking-button and eccentric pin at the inner end, and a projecting pin at the outer end, with an interior arc-shaped rack and an outer guide attachment of the blind, substantially in the manner and for the purpose set forth.

vROBERT J. STUART. Witnesses:

PAUL GOEPEL, C. SEDGwIcK. 

